Frequency of a compressor is controlled so that an evaporating temperature reaches a target evaporating temperature during cooling operation, and, when refrigerant stagnation in a condenser of an outdoor unit is detected during cooling operation, a stagnation-resolving operation is implemented. The stagnation-resolving operation includes stagnation suppression control in which the target evaporating temperature is reduced within a range in which an evaporator does not freeze so as to increase a refrigerant circulation volume in the condenser, and stagnation-avoidance priority control which is implemented when implementation of the stagnation suppression control is not able to resolve stagnation, and in which an opening degree of an expansion valve is controlled to be opened and the target evaporating temperature is further reduced so as to further increase the refrigerant circulation volume.